Wolfie's Recent Bad Behavior
 

I don't know what has gotten into him today. This morning, he was chewing a bone int he diningroom, when I heard him break off a piece. I went over to him, and checked his mouth for the piece of bone that splintered off, and reached down to take the bone away. I
He growled at me when I tried to take the bone. I took him by the collar, moved him away from the bone and then took the bone and threw it away.
Tonight, he stole a piece of plastic, and ran under the diningroom table with it. I went after him, and went to take it away. This time he showed his teeth, growled, and put his mouth on my wrist. He didn't bite, but just put his mouth on me. I put him in his crate for a time out.
He has never acted like this before. I have never had any troubles taking anything away from him ever.
What can be triggering this new behavior, and how do I remedy it? Wolfie has always been a sweet boy.

If he's never sine anything like this or shown any early signs of this, I would take him to the vet. Its odd that this behavior came out of nowhere.

He's due for a checkup. I will bring it up with the vet. It is very strange.

How old is Wolfie?

How unsettling. I hope that Wolfie is o.k. His age shouldn't have anything to do with it as he's past adolescence.

I too hope he's ok. Has anyone been alone with him lately where something might've happened?

Wolfie is 3. No one new has been around him. He seems healthy and is acting normal otherwise.

Sorry, I'm on my phone and can't see the teeny tint profile picture Lol. I wasn't sure if he was a puppy or not.

Try this. Give him something of medium value to him. Then approach him with an awesome treat after calling his name. Let him nibble on it and take away the toy. Then give the toy back. if he succeeds in not growling then he should be OK. Then post an update.
I think you moved too fast by taking away the bone and maybe you overreacted in his opinion (due to being worried). I can see his point.

He only did this in the dining room when he was near or under the table. I think he thinks that the diningroom table is his den and I went in there and took his stuff. I will give your suggestion a try. Thank you